github-actions[bot] commented on code in PR #67977: URL: https://github.com/apache/doris/pull/67977#discussion_r4321174841
########## be/src/format/table/index_disk_usage_reader.cpp: ########## @@ -0,0 +1,436 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +#include "format/table/index_disk_usage_reader.h" + +#include <boost/algorithm/string/case_conv.hpp> +#include <shared_mutex> +#include <string> +#include <string_view> +#include <utility> +#include <variant> + +#include "cloud/cloud_tablet.h" +#include "common/cast_set.h" +#include "core/block/block.h" +#include "core/column/column_nullable.h" +#include "core/column/column_string.h" +#include "core/column/column_vector.h" +#include "runtime/exec_env.h" +#include "runtime/query_context.h" +#include "runtime/runtime_state.h" +#include "storage/rowset/rowset.h" +#include "storage/rowset/rowset_meta.h" +#include "storage/tablet/base_tablet.h" +#include "storage/tablet/tablet_schema.h" + +namespace doris { + +using segment_v2::IndexDiskUsageLevel; +using segment_v2::IndexDiskUsageRecord; +using segment_v2::IndexDiskUsageRow; +using segment_v2::IndexDiskUsageStructure; + +namespace { + +const std::vector<std::pair<std::string_view, IndexDiskUsageReader::Column>>& column_names() { + using C = IndexDiskUsageReader::Column; + static const std::vector<std::pair<std::string_view, C>> names = { + {"PARTITION_NAME", C::kPartitionName}, + {"MATERIALIZED_INDEX_NAME", C::kMaterializedIndexName}, + {"TABLET_ID", C::kTabletId}, + {"BACKEND_ID", C::kBackendId}, + {"ROWSET_ID", C::kRowsetId}, + {"SEGMENT_ID", C::kSegmentId}, + {"INDEX_ID", C::kIndexId}, + {"INDEX_NAME", C::kIndexName}, + {"INDEX_TYPE", C::kIndexType}, + {"COLUMN_NAME", C::kColumnName}, + {"INDEX_SUFFIX", C::kIndexSuffix}, + {"STRUCTURE", C::kStructure}, + {"STORAGE_FORMAT", C::kStorageFormat}, + {"SEGMENT_COUNT", C::kSegmentCount}, + {"ROW_COUNT", C::kRowCount}, + {"TOTAL_BYTES", C::kTotalBytes}, + {"DICT_BYTES", C::kDictBytes}, + {"POSTING_BYTES", C::kPostingBytes}, + {"POSITION_BYTES", C::kPositionBytes}, + {"STATS_BYTES", C::kStatsBytes}, + {"OTHER_BYTES", C::kOtherBytes}, + {"STATS_SOURCE", C::kStatsSource}, + }; + return names; +} + +Result<IndexDiskUsageReader::Column> column_of(const std::string& slot_name) { + const std::string upper = boost::to_upper_copy(slot_name); + for (const auto& [name, column] : column_names()) { + if (upper == name) { + return column; + } + } + return ResultError(Status::InternalError("unknown index_disk_usage column {}", slot_name)); +} + +Result<IndexDiskUsageLevel> parse_level(const std::string& level) { + if (level == "tablet") { + return IndexDiskUsageLevel::kTablet; + } + if (level == "rowset") { + return IndexDiskUsageLevel::kRowset; + } + if (level == "segment") { + return IndexDiskUsageLevel::kSegment; + } + return ResultError(Status::InvalidArgument("unsupported index_disk_usage level {}", level)); +} + +std::string_view structure_name(IndexDiskUsageStructure structure) { + switch (structure) { + case IndexDiskUsageStructure::kTerm: + return "TERM"; + case IndexDiskUsageStructure::kBkd: + return "BKD"; + case IndexDiskUsageStructure::kAnn: + return "ANN"; + case IndexDiskUsageStructure::kContainer: + return "CONTAINER"; + } + return "UNKNOWN"; +} + +void insert_null(IColumn* column) { + auto& nullable = reinterpret_cast<ColumnNullable&>(*column); + nullable.get_nested_column().insert_default(); + nullable.get_null_map_data().push_back(1); +} + +IColumn* non_null_nested(IColumn* column) { + auto& nullable = reinterpret_cast<ColumnNullable&>(*column); + nullable.get_null_map_data().push_back(0); + return nullable.get_nested_column_ptr().get(); +} + +void insert_int64(IColumn* column, int64_t value) { + assert_cast<ColumnInt64*>(non_null_nested(column))->insert_value(value); +} + +void insert_int32(IColumn* column, int32_t value) { + assert_cast<ColumnInt32*>(non_null_nested(column))->insert_value(value); +} + +void insert_string(IColumn* column, std::string_view value) { + assert_cast<ColumnString*>(non_null_nested(column))->insert_data(value.data(), value.size()); +} + +} // namespace + +IndexDiskUsageReader::IndexDiskUsageReader(std::vector<SlotDescriptor*> slots, RuntimeState* state, + RuntimeProfile* /*profile*/, TMetaScanRange scan_range) + : _state(state), _slots(std::move(slots)), _scan_range(std::move(scan_range)) {} + +Status IndexDiskUsageReader::init_reader() { + if (!_scan_range.__isset.index_disk_usage_params) { + return Status::InvalidArgument("index_disk_usage scan range has no parameters"); + } + const TIndexDiskUsageMetadataParams& params = _scan_range.index_disk_usage_params; + _level = DORIS_TRY(parse_level(params.level)); + _options.position_detail = params.position_detail; + _options.index_ids.insert(params.index_ids.begin(), params.index_ids.end()); + _options.check_cancelled = [state = _state]() { + RETURN_IF_CANCELLED(state); + return Status::OK(); + }; + // Index file reads are accounted to the query like the reads of any other scan. + _io_ctx = io::IOContext { + .reader_type = ReaderType::READER_QUERY, + .query_id = &_state->query_id(), + .is_inverted_index = true, + }; + _io_ctx.inverted_index_snii_read_no_write_file_cache = + _state->query_options().inverted_index_snii_read_no_write_file_cache; + if (auto* query_ctx = _state->get_query_ctx(); query_ctx != nullptr) { + _io_ctx.remote_scan_cache_write_limiter = query_ctx->remote_scan_cache_write_limiter(); + } + _options.io_ctx = &_io_ctx; + _slot_columns.clear(); + for (const SlotDescriptor* slot : _slots) { + const Column column = DORIS_TRY(column_of(slot->col_name())); + _slot_columns.push_back(column); + } + return Status::OK(); +} + +Status IndexDiskUsageReader::_do_get_next_block(Block* block, size_t* read_rows, bool* eof) { + const auto& tablets = _scan_range.index_disk_usage_params.tablets; + *read_rows = 0; + while (_next_tablet < tablets.size()) { + RETURN_IF_CANCELLED(_state); + const TIndexDiskUsageTablet& target = tablets[_next_tablet++]; + std::vector<IndexDiskUsageRow> rows; Review Comment: [P2] Charge the per-tablet inventory buffers to the query `rows` retains one record per physical index/suffix per segment until the whole tablet has been collected, and aggregation then allocates another standard vector and map. These STL allocations have no MemTracker charge: the current jemalloc hook only forwards malloc to jemalloc, and scanner task attachment/output-block accounting does not account for these temporary buffers. A supported wide VARIANT tablet with many segments can therefore allocate gigabytes beyond the query memory budget even at `level=tablet`; the tablet-count caps do not bound this work. Use allocator-aware containers or explicit scoped accounting/reservation for the owned payload, and aggregate or emit records incrementally. Please cover many suffix/segment records under a small query memory limit. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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